Ni-Cr薄膜换能组件静电响应特性与发火概率预测研究  

Study on the Electrostatic Response Characteristics and Ignition Probability Prediction of Ni-Cr Thin Film Energy Conversion Components

作　　者：章云[1] 李博[1] 解瑞珍[2] 付禹龙 任小明[2] 姚洪志[2] ZHANG Yun;LI Bo;XIE Rui-zhen;FU Yu-long;REN Xiao-ming;YAO Hong-zhi(State Key Laboratory of Electromechanical Integrated Manufacturing of High-performance Electronic Equipment,Xidian University,Xi'an,710071;State Key Laboratory of Transient Chemical Effects and Control,Shaanxi Applied Physics and Chemistry Research Institute,Xi'an,710061)

机构地区：[1]西安电子科技大学高性能电子装备机电集成制造全国重点实验室,陕西西安710071 [2]陕西应用物理化学研究所瞬态化学效应与控制全国重点实验室,陕西西安710061

出　　处：《火工品》2024年第5期59-65,共7页Initiators & Pyrotechnics

基　　金：陕西省重点研发计划项目(2023-YBGY-333);陕西省创新能力支撑计划(2023-CX-PT-30)。

摘　　要：针对电火工品在静电放电影响下可能发生误发火的问题,以Ni-Cr薄膜换能组件为研究对象,提出了一种分析其在人体静电放电下的响应特性,并预测发火概率的方法。首先,介绍了Ni-Cr薄膜换能组件系统架构,并建立了电火工品静电放电等效电路模型;其次,研究了Ni-Cr薄膜换能组件静电放电响应特性,分析了换能组件尺寸和放电电压对薄膜桥区温度的影响规律;最后,构建了Ni-Cr薄膜换能组件在统计特征下的输入条件,确定了换能组件失效判据,进而结合发火感度试验与数理统计方法,实现了在静电放电条件下电火工品发火概率的预测。研究结果表明:预测发火概率与试验值误差不超过5%,验证了本文方法的有效性。Aiming at the problem of the misfiring of electro-explosive devices(EEDs)under the influence of electrostatic discharge(ESD),a method of analyzing the response characteristics of Ni-Cr thin film energy conversion component(ECC)and predicting the ignition probability under ESD was proposed.Firstly,the system architecture of Ni-Cr thin film ECC was introduced,and an equivalent circuit model for EEDs in ESD was established.Secondly,the response characteristics of Ni-Cr thin film ECC under human body model ESD were investigated,the influences of ECC dimensions and discharge voltage on the temperature of thin-film bridge region were analyzed.Finally,input conditions under statistical characteristics of Ni-Cr thin film ECC were constructed,and the failure criterion for the ECC was determined.By combining ignition sensitivity tests with mathematical statistical methods,the prediction of ignition probability under ESD conditions for EEDs was achieved.The study results indicate that the error between the calculated ignition probability and the experimental ignition probability does not exceed 5%,which verifies the effectiveness of the proposed method.

关 键 词：电火工品 Ni-Cr薄膜 静电放电 失效判据 发火概率 

分 类 号：TJ450.2[兵器科学与技术—火炮、自动武器与弹药工程]